Rarely do professional footballers make public statements that zigzag anywhere near political engagement - so the appearance of West Ham's Matt Jarvis on the cover of Britain's best-selling gay magazine, Attitude, and his attempt to address homophobia, one of the beautiful game's last remaining stigmas (in 21 years of the Premier League not one footballer has come out), is to be welcomed. Here we select five other pros who have used their profile to political effect.